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H. HOGHKLASSEN. TYPEWRITING MAGHINE.

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TYPE WRITING MAGHINB.

No. 578,693. Patented Mar. 9, 1897.

.Q .mNILNISv UNITED STATES PATENT OEEICE.

HENRY HCCHKLASSEN, oF CHICAGO, ILLINOIS, AssIeNoR, EY MESNE ASSIGNMENTS, To CHARLES N. EAY, or SAME PLACE.

SPECIFICATION forming part of Letters Patent No. 578,698, dated March 9, 1897.

Application filed March 28, 1895. Renewed January 9, 1897. Serial No. 618.671. (No model.)

To a/ZZ whom it Tlv/ty Concern,.-

Beit known that I, HENRY HCCHKLASSEN, a citizen of the United States, residing at Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Type-Writing Machines, of which I do declare the following to be a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

The present invention has relation to that class of typeewriting machines in which the printing is effected by types carried on the ends of typebars and striking at a common center, and more particularly does the invention relate to that class of machines in which each of the type-bars carries a plurality of types, and in which provision is made for causing either of the types of a type-bar to strike at the common printing-point.

In the accompanying drawings I have shown my invention as applied to a type-writin g inachine in which the type-bars are sustained by a movable disk or plate, the shifting of this disk or plate serving to bring either of the types upon the ends of the type-bars into position for printing. It will be understood, however, that certain broad features of my invention are applicable to that class of ma- Chines in which the paper-carrying platen, instead ofthe type-bar carrier, is shifted in order to cause all the types to print at a common point.

The object of this invention is, first, to provide improved bearings for sustaining the shifting-bar carrier or disk; second,to provide improved means for connecting the type-bars to their hanger-rods, and, third, to provide improved mechanism for eecting the movement of that part that is to be shifted in order to Secure the printing at a common point of the upper and lower case letters carried by the type-bars. The invention consists in the novel features hereinafter described,illus trated in the accompanying drawings, and particularly pointed out in the claims at the end of the specification.

Figure l is a View in vertical cross-section through a type-writing machine embodying my invention, parts being shown in elevation. Fig. 2 is a view similar to Fig. l, but taken adjacent the left-hand end of the main frame. Fig. 3 is a detail perspective view of a portion of the type-bar carrier or disk and parts of the lever mechanism whereby the disk is shifted. Fig. et is a perspective view of the upper end of one of the hanger-rods with its hook open. Fig. 5 is a view similar to Fig. I, but showing the hook closed. Fig. 6 is an inverted plan view of the top plate of the machine and adjacent parts. Fig. 7 is a view in section on line 7 7 of Fig. 6. Fig. 8 is a view in section on line S S of Fig..9. Fig. 9 is a view in section on line 9 9 of Fig. 8. Fig. lO is a perspective view of the ball -bearing bracket for sustaining the rear part of the type-arm carrier or disk. spective View of one of the ball bearing brackets at the sides of the type-bar carrier or disk. Fig. l2 is an inverted plan view of one corner of the type-bar carrier or disk, showing the ball-beari ng block attached thereto, the adjacent ball-bearing bracket being Shown in section.

Within the base of the main frame A of the machine are mounted the key-levers B, that are connected by means of suitable hangerbars C and rods C with the type-bars D, that are mounted upon the movable type-bar carrier or disk E. I have shown each of the typelevers B as provided with a headed pin b, that passes through a slot 20, formed in the lower end of the corresponding hanger-bar C, although this construction forms no part of my invention. I have also shown each of the hanger-bars C as provided with a slot 21, through which passes a bar 7o, that extends between the lower ends of suitable shiftingbars K, depending from the under side of the typebar carrier or disk E; but this mechanism for shifting the hanger-bars C in unison with the type-carrier or disk E forms no part of my invention. Each of the type-bars D is journaled at one end, as at 25, within suitable hanger-arms 2G, that are fastened in any convenient manner to the type-bar carrier or disk E. The upper end of each of the type-bars D is preferably bifurcated, as seen in Fig. 5, and is provided with a pin d, with which engages a hook c at the upper end of the hangerrod C. In order to close the hook c after it has engaged the pin d, I provide this hook with a jaw c', that is pivoted, as at c2, and has its lower end formed with a curved catch c3, adapted to spring'over and engage with the body of the hanger-rod C'. Thus it will be Fig. ll is a per-l IOO seen that if the parts be in the position shown in Fig. et the hook c can be readily set over the pin CZ of the type-bar, after which the jaw c' can be turned to the closed position, (shown in Fig. 5,) the catch c3, springing over the rod C and securely retaining the hook c in closed position.

The type-bar carrier or disk E is preferably formed with the lateral extensions e and the rearward extensions c. (See Fig. 6.) To the under side of the lateral extensions e are attached the hard-metal bearing-blocks 30, that rest upon the ball-bearings 3l, that are sustained by the hanger-blocks 32, wherein the balls 3l are mounted. In order to retain the balls 3i within the blocks 30 and 32, I provide pins 33, dependingl from the blocks 30 and 32. The blocks 3,2 are preferably shaped as shown in Fig. l1 and are attached to suitable lugs formed on the under side of the top plate of the main frame. (See Fig. 7.) The rearward extension c' of the disk E has attached to its under face a hard-metal block 35, that rests upon the ball-bearings 3G, that are carried by the dependent bearing-bracket 37, that is bolted, as at 38, to the und'er side ofthe top plate of the main frame. (See Fig. 6.) The bearing-block 35 and the bracket 37 are provided with pins 39 to retain the balls 36 in position. The rearward extension e is furnished also with guideplates 40, (see Figs. 8 and 9,) that are arranged at each side of the bearing-block 35 and aid in securing the accurate movement of the parts. Preferably, also guide-plate Ll() is formed with a slot e2, through which passes a stop-pin 44, that depends from the top plate of the machine and limits the rearward movement of the type-bar carrier or disk E. 'By thus mounting the disk E upon ballabearings at its sides and rear the disk can be shifted with the least possible friction in order to bring either of types at the end of each type-bar in proper position for effecting its impression.

In order to shift the type-bar carrier or disk E, so as to cause either of the types of any one of the type-bars E to strike at a common printing-point of the platen W that is mounted within a suitable carriage upon the top plate of the main frame, I employ the mechanism next to be described. From the under side of the disk E projects a pin e9, that enters a slot f, formed in a shifting-lever F, that is pivotally connected at one end, as at 50, to the under side of the top plate of the main frame.. The opposite end of this shifting-lever F is formed with a slot f', through which passes a screw 5l, that enters a threaded hole in the top plate, the head of this screw serving to sustain the shifting-lever F. By reference to Fig. 3 of the drawings it will be seen that the outer end of the shifting-lever F is formed with slots to receive the upper yoke-shaped ends g and g of the uppercase key-lever G, that is pivoted, as at g2, to suitable bearings on the main frame and has its lower end g3 extending forwardly and provided with a iinger-piece g4. The type-bar carrier or disk E is drawn rearwardly to the position shown by a spring. 56, one end of which is attached to the 'shiftii'ig-lever F and the other end of which is connected to the under side of the top plate of the main frame, and the disk Eis normally locked in such position by a latchbar M, that is pivotally sustained by a hanger m, depending from the under side of the top plate-of the main frame, the inner end of the latch-bar M being formed with a shoulder m', to engage the forward edge of the disk E. The upper end of the upper-case key G is provided with a pin g5, that will engage with a cam-shaped extension m2, formed upon the under edge of the latch-bar M in order to effect the disengagement of the latch-bar from the disk E when the disk is to be shifted. The mechanism thus far described for effecting the shifting of the type-bar carrier or disk is an invention of another, and I do not wish, therefore, to be understood as making claim thereto. From the foregoing description it will be seen that when the upper-case key-lever G has its finger-piece g4 depressed the latch-bar M will be lifted, the shifting-bar F will be drawn forward, and the type-bar carrier or disk E will also be drawn forward, and this shift-ing of the type-bar carrier or disk E will be suficient to bring into position for printing. at the common printing-point those types which are out of action while the disk E is in its normal position. It is frequently desirable in certain classes of work to provide means whereby the upper-case letters of the alphabet may be continuously printed without the necessity of the operator manually retaining the upper-case finger-key depressed, and the purpose of the improvement next to be described is to enable the parts, when shifted to the proper position for effecting the printing of upper-case levers, to be locked in such position and to enable an easy release of the parts when it is desired to resume the printing with.

the lower-case types.

To the forwardly-extending part g3 of the upper-case key-lever G, I have pivotally connected, as at p, a supplement-al key P, preferably of angular shape, and provided with a finger-piece p at its forward end and with a hook or shoulder p2 at its rear end adapted to engage with an extension or stop 60, depending from the main frame of the machine. (See Fig. 2.) A pinpt, projecting from the upper-case key-lever G, will limit the downward movement of the supplemental key P, the weight of which key tends to normally hold it in the downward position shown in Fig. 2. When theupper-case key-lever G is depressed, it will shift the type-bar hanger or disk E in manner hereinbefore defined, but the hooked end p2 of the supplemental key I will not remain in engagement with the stop or extension because of the normal tendency of the rear part of the key P to drop downwardly and thus release its hook p2 before it becomeslocked with the stop 60.

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Hence when the upper-case key-lever is operated merely for the purpose of causing the printing of individual upper-case letters the l supplemental key P remains out of action.

When, however, it is desired to print a succession of upper-case letters, and in doing so to lock the type-bar carrier or disk E in position for such purpose and thus relieve the operator from the necessity of manually retaining the upper-case key depressed, the operator will depress the finger-piece p of the supplemental key P. This depression of the finger-piece p will cause the upper-case key-lever G and the supplemental key P to assume the position shown by dotted lines in Fig. 2, and the shoulder p2 will engage with the stop or extension 60, and the friction of the parts will cause the shoulder to so firmly engage the stop as to retain the upper-case key-lever G in the position shown by dotted lines in Fig. 2, and thus hold the type-bar carrier or disk so that the operator may use both hands in printing upper-case letters. When the operator desires to restore the typebar carrier or disk E to normal position, this can be done by depressing the finger-piece g4 of the upper-case key-lever G, thereby causing the front end of the upper-case key-lever to move downwardly' a trife farther and thus allow the weight of the rear end of the ,f supplemental key P to cause its hook p2 to drop from engagement with the stop or extension 60.

I do not wish my invention to be understood as restricted to the precise details of construction or arrangement of the supplemental key, since these may obviously be varied by the skilled mechanic.

Having thus described the invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a type-writing machine, the combination with a main frame, of a type-bar carrier or disk E located beneath the top plate of said main frame and having lateral and rearward extensions e and e', the ball-bearings 35 and bearing-blocks or hangers 32 attached to the under side of the top plate and whereby said lateral extensions are supported and the ball-bearings 36 and hangers 37 attached to the under side of the top plate and whereby said rearward extension e is supported, substantially as described.

2. In a type-writin g machine, the combination with a type-bar, of a hanger-rod provided with a hook and with a retaining-piece mounted on a fixed pivot adjacent the end of said rod and arranged to swing in the vertical plane of said rod and serving to close said hook, substantially as described.

3. In a type-writing machine, the combination with a type-bar, of a hanger-rod provided with a hook and with a retaining-piece for closing said hook, said retaining-piece being mounted upon a fixed pivot adjacent the end of the hanger-rod, said retaining-piece being provided at the end farthest from the hook with a latch adapted to engage the hanger-rod and hold the retaining-piece inposition to close the hook, substantially as described.

4. vIn a type-writing machine, the combination with a body to be shifted to eect the printing of upper-case letters or the like, of a main upper-case key-lever for effecting the shift of said body, a supplemental key-lever pivotally connected to said upper-case keylever and provided at one side of its pivotal point with a finger-piece whereby both it and the main key-lever may be depressed, a stop or projection for engagement with said supplemental key-lever at the opposite side of its pivotal point, said supplemental key-lever being arranged to escape engagement with said stop or projection when the main key-lever is operated, but serving when its own iingerpiece is depressed to engage said stop or projection and lock the main key-lever in depressed position, substantially as described.

5. In a type-writing machine, the combination with a body to be shifted to effect the printing of upper-case letters or the like, of a main upper-case key-lever for effecting the shift of said body, a supplemental key-lever pivotally connected to said upper-case keylever and provided at its outer end with a iinger-piece whereby both it and the main keylever may be depressed and provided at its inner end with a hook, said finger-piece and said hook being at opposite sides of the pivotal point of said supplemental lever, and a stop or projection for engagement with the hooked end of said supplemental key-lever, said supplemental key-lever being arranged to escape engagement with said stop or pro-l jection when the main key-lever is operated, but serving when its own iinger-key is depressed to engage said stop or projection and lock the main key-lever in depressed position, substantially as described.

6. In a type-writing machine, the' combination with the body to be shifted to effect the printing of upper-case letters or the like, of a main upper-case key-lever for effecting the shift of said body, a supplemental keylever pivotally connected to said upper-case key-lever and provided at one end with a finger-piece whereby both it and the main keylever may be depressed and provided also with an inwardly-projecting end held normally in such position that it will not engage with the stop or projection when the main key-lever is depressed but will engage with said stop or projectionwhen the supplemental key-lever is depressed; said main and supplemental key-levers being arranged with respect to each other also in such manner that a slight depression of the main key-lever will release the supplemental key-lever from its locked position, substantially as described.

HENRY HOOHKLASSEN.

Witnesses:

GEO. P. FISHER, Jr., ALBERTA ADAMICK.

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